ESR1 Amplification in Breast Cancer by Optimized RNase FISH: Frequent but Low-Level and Heterogeneous

• Cathy B. Moelans ,

  Contributed equally to this work with: Cathy B. Moelans, Frederik Holst

  * E-mail: C.B.Moelans@umcutrecht.nl (CBM); Frederik.Holst@ikm.uib.no (FH)

  Affiliation Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands

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• Frederik Holst ,

  Contributed equally to this work with: Cathy B. Moelans, Frederik Holst

  * E-mail: C.B.Moelans@umcutrecht.nl (CBM); Frederik.Holst@ikm.uib.no (FH)

  Affiliations Section of Gynecology and Obstetrics, Department of Clinical Science, Haukeland University Hospital, Bergen, Norway, Department of Pathology, University Medical Center Hamburg Eppendorf, Hamburg, Germany

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• Olaf Hellwinkel,

  Affiliation Department of Legal Medicine, University Medical Center Hamburg Eppendorf, Hamburg, Germany

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• Ronald Simon,

  Affiliation Department of Pathology, University Medical Center Hamburg Eppendorf, Hamburg, Germany

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• Paul J. van Diest

  Affiliation Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands

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